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Related Questions:

Click on the "Windows Setup" tab, "Multimedia," then select "Details."

3

Choose "Sound Recorder" from that screen, then click "OK."
The Sound Recorder application will begin to run.
Step 4 will begin the microphone test.
4

Click "Record," which is the circle located on the right side of the user interface.
If you hardware device is functional, you should see the recording display begin to move.
5

Press "Stop," "Rewind," then "Play" to verify the audio that has been recorded.
If you are able to hear what the microphone picked up, but are having trouble hearing the microphone's input within other software, refer to the software's manual about proper configuration of the device.

If you were unable to record with your Acer microphone in Sound Recorder, continue to Step 6. 6

Scroll your mouse over to the bottom-right corner of your computer screen and then double-click on the small speaker icon.
7

Slide the microphone volume slider all the way to the top and make sure that there hasn't been a mute check-box selected.

If you are still experiencing error while recording with your Acer laptop's built-in microphone, you most likely have faulty hardware that needs to be replaced by Acer directly. http://support.microsoft.com/kb/266677

Acer laptops feature on-board microphones for sound
recording purposes within Windows.
Since an internal microphone can be a very handy tool for
communication and speech-to text capabilities, working without a functional mic
can severely hinder work flow for many users.
If you do not have any prior knowledge of how to repair a
non-functional microphone within Windows, you may feel the need to send off
your Acer laptop for repair.
There is no need, because even the most novice Acer user can
do it.

Go to "Start," "Control Panel," then double-click on
"Add/remove Programs."
Click on the "Windows Setup" tab,
"Multimedia," then select "Details."

Choose "Sound Recorder" from that screen, then
click "OK."
The Sound Recorder application will begin to run. Step 4
will begin the microphone test.

Click "Record," which is the circle located on
the right side of the user interface.
If you hardware device is functional, you should see the
recording display begin to move.

Press "Stop," "Rewind," then
"Play" to verify the audio that has been recorded.
If you are able to hear what the microphone picked up, but
are having trouble hearing the microphone's input within other software, refer
to the software's manual about proper configuration of the device.
If you were unable to record with your Acer microphone in
Sound Recorder, continue to next Step.

Scroll your mouse over to the bottom-right corner of your
computer screen and then double-click on the small speaker icon.
Slide the microphone volume slider all the way to the top
and make sure that there hasn't been a mute check-box selected.
If you are still experiencing error while recording with
your Acer laptop's built-in microphone, you most likely have faulty hardware
that needs to be replaced by Acer directly.

Acer laptops feature on-board microphones for sound
recording purposes within Windows.
Since an internal microphone can be a very handy tool for
communication and speech-to text capabilities, working without a functional mic
can severely hinder work flow for many users.
If you do not have any prior knowledge of how to repair a
non-functional microphone within Windows, you may feel the need to send off
your Acer laptop for repair.
There is no need, because even the most novice Acer user can
do it.

Go to "Start," "Control Panel," then double-click on
"Add/remove Programs."
Click on the "Windows Setup" tab,
"Multimedia," then select "Details."

Choose "Sound Recorder" from that screen, then
click "OK."
The Sound Recorder application will begin to run. Step 4
will begin the microphone test.
Click "Record," which is the circle located on the
right side of the user interface.
If you hardware device is functional, you should see the
recording display begin to move.
Press "Stop," "Rewind," then
"Play" to verify the audio that has been recorded.
If you are able to hear what the microphone picked up, but
are having trouble hearing the microphone's input within other software, refer
to the software's manual about proper configuration of the device.
If you were unable to record with your Acer microphone in
Sound Recorder, continue to next Step.
Scroll your mouse over to the bottom-right corner of your
computer screen and then double-click on the small speaker icon.
Slide the microphone volume slider all the way to the top
and make sure that there hasn't been a mute check-box selected.
If you are still experiencing error while recording with
your Acer laptop's built-in microphone, you most likely have faulty hardware
that needs to be replaced by Acer directly.

Hi. Your computer does have an onboard, built-in microphone and speakers. I do not know what type of operating system you have (please provide that) but if you or anyone did a fresh install of an operating system, the drivers for the Acer machine may not have been installed. If this is the case, you can find the drivers here: http://www.vistaxpdrivers.com/download-acer-aspire-5338-windows-vista-drivers.html

If that is not the problem, it may be that the speakers are simply turned off in "control panel > sounds and audio devices". If you know how to check this, you should. If not, I'll help if you want. See ya.

Please try the following:Click Start > Control PanelIf the title of your control panel says "Pick a Category", click "Switch to classic view" on the left hand side of he screen. Otherwise, just follow the steps below:Open "Sounds and audio devices"Go to the "Audio" tabClick the "Volume" button under the "sound recording" sectionMake sure the checkbox by "Select" under Mic Volume is checked, and raise the volume of your microphone here.Click OK until you are back in the control panel.Try your microphone again. If it still does not work, let us know so we can continue to help.

Click the Record button and speak into the microphone of the
camera. You should see the green line move, indicating the application
is picking up sound.

Click the Stop button.

Click the Play button. If there is no sound at playback, check to make sure the correct device is selected.

Click "Edit," then "Audio Properties."

Make sure Logitech is listed as the Preferred device for "Sound recording."

The microphone may also be defective. To test this, try the camera on another USB enabled system.
If you can record sound in Sound Recorder, but not in the QuickCam
application, try setting the Logitech Microphone as the Preferred
device in Audio Properties.Multimedia Keyboards:
A multimedia keyboard is a keyboard that has a button which can
automatically control your computer volume. If you have a multimedia
keyboard installed, the software for the multimedia keyboard may need
to be uninstalled in order for the camera's microphone to work properly
in Windows. Please contact Logitech with the make and model of the
multimedia keyboard that is causing the problem. While we will not be
able to assist you other than to advise to uninstall the keyboard
software, it will help us determine the root cause of the
incompatibility.